Taxes (Reason For Difference Between Expected Tax Computed And Income Tax Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 01, 2020	Feb. 02, 2019	Feb. 03, 2018
effective income tax rate reconciliation [Line Items]
Expected tax	$ 153	$ 300	$ 515
State and local income taxes, net of federal income tax benefit	13	59	19
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	0	(17)	(584)
Income Tax Effects Allocated Directly to Equity, Employee Stock Options	1	0	14
Federal tax credits	(3)	(16)	(16)
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	5	10	18
Other	(5)	(14)	(5)
Income tax expense (benefit), total	$ 164	$ 322	$ (39)